Leather-splitting machine.



J. F. FUNCK. LEATHER SPLITTANG MACHINE.

- APPLICATION FILED FEB. 23, 19H). 1,302,651.

4 SHEETS-SHEET I INVENTOR ill/62? Patented May 6, 1919.

1-. F. FUNCK.

LEATH LITTING MACHINE.

APPLICA FILED FEB. 23. 1916.

TOR

INVEN Mb]? J. F. F-UNCK.

LEATHER SPLITTING' MACH|NE.'

APPLICATION FILED FEB. 23. I916.

Patented May 6, 1919,

4 SHEETS-SHEET 4 N 0/ a A: 5 Wm W a w M," 9 F 4 L 7 5. w t a 3 M a a IN VEN TOR. Lfawif'fi/izm" WITNESSES JACOBF. FUNCKOF ROCHESTER, NEW YORK.

LEATHER-SPLITTING MACHINE.

Specificationof Ietters Patent.

Patented May 6, 1919.

Application filed February 23, 1916'. Serial No. 79,933. I

To all whom it may concern: 1

Be it known that I, JAcoB F. FUNCK, of Rochester, in the county of 'Monroe and State of New York, have invented certain new and useful Improvements in Leather- Splitting Machines; and I do hereby declare the following to be a full, clear, and exact a piece of stock into engagement with a splitdescription of the same, reference being had to the accompanying drawings, formlng a part of this specification, and to the reference-numerals marked thereon.

My invention relates to a leather splitting machine and is particularly adapted for use in connection with the splitting of soles for shoes of the class upon which a portion of the sole is adapted to be carried down in front of the heel and secured thereto.

One of the objects of the invention is to provide a machine which may be adjusted for splitting different thicknesses of leather and 'which will automatically operate to increase the thickness of one ofthe split /por-.

tions relatively to the other. A further object of the invention 1s to provide in a leather splitting machine, means for feeding ting member a predetermined amount, and thereafter automatically returning the stock to the operator manipulating the machlne. To these and other ends the invention consists in certain improvements and combina-- tions of parts, all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

1n the drawings:

Figure 1 is a plan view of one embodiment of my invention; V

Fig. 2 is an end view of the same with the cover for the operating meehanism removed;

Fig. 3 is a view showing the end of the machine opposite to that shown in Fig. 2;

Fig. 4 is a front elevational View drawn to a reduced scale;

Fig. 5 is a sectional view taken, on line aa of Fig. 4;

Fig. 6 is an enlarged detail sectional view through the rollers, showing a piece of stock fed therebetween into engagement with the knife adapted for splitting the stock as the rollers revolve in the direction ofthe knife; Fig. 7 1s a similar view showing the stock advanced to the position where the thickness of the upper split portion in increased over that shown in Fig. 6, and i Fig. '8 is a longitudinal sectional view showlng a sli htly modified form of roller. Similar reference numerals throughout the several figures indicate the sameparts.

The invention as illustrated in the preferred embodiment comprises a base or frame 1 having a ledge or support 2 for a knife 3. The support is preferably provided at its rear with upstanding members 4 which receive and support one side of a clamping plate 5, the other side of which rests onthe knife 3. The plate 5 is clamped upon the knife by means of a bolt 6 passing through the plate into threaded engagement with the support 2. The knife is adj ustably mounted upon the support by means of adjusting screws 7 passing through the upstanding members 4' into threaded engagement with the knife. The screws 7 are provided with enlarged heads 8 at the end of shouldered portions 9 which are seated on the upstanding members 4.

' The knife?) is adjustable between the upper and lower rollers 10 and 11 respectively, which are movably supported upon the frame in a manner which will be hereinafter described.

A driving shaft 12 is journaled in the frame and upon one end of the shaft are mounted fixed and loose pulleys13 and 14-. re spectively. The other end of the shaft is provided with a pinion meshing with a gear 16 which is rigidly connected with a shaft 17 journaled in the rear portion of the frame 1. Upon the outer face of the gear 16 and preferably formed integral therewith, is a crank supporting member 18 having guideways 19-and 20 in clamping engagement with which is a crank pin head (not shown), the crank "pin being designated at 21. vA nut 22 is provided for clamping the crank pin at any desired distance from the center of the gear 16. Pivotally mounted upon the crank pin is one end of a connectingrod 23, the other end of which is pivotally connected at 245 to a toothed segment 25. The toothed segment is provided with a downwardly eX-- tending arm 26 which is pivotally mounted on a stud 27 projecting from the frame 1. Meshing with the segment 25 is a gear wheel 28 mounted on a shaft 29 journaled in the frame 1. A gear wheel 30 meshes with the gear 28 and is mounted on a shaft 31 also journaled in the frame 1. The gear 28 also meshes with a gear 32 which is mounted "on a shaft 33 carrying the roller 11, the

shaft 33 being supported in bearings 34 and 35 at opposite ends of the roller. The bearing 34 is provided with a rearwardly extending arm 36 which is pivotally mounted on a shaft 37 journaled in a side extension 38 carried by the framel. The bearing 35 is provided with a rearwardly extending arm 39 pivotally. mounted on the shaft 29 journaled in a side exten ion 40 of the frame 1. The side extensions 8 and 40 terminate in an outwardly and upwardly extending arch .41, the purpose of which will presently be described. The gear 30 is adapted to mesh with a gear 42 mounted on a shaft 43 carrying the roller10. v The shaft 43 is journaled in bearings 44 and 45 at opposite ends of the roller. The bearing 44 is provided with a rearwardly extending arm 46 pivotally mounted upon a shaft 47 journaled in the side extension 38 of the frame 1. The bearving45 is provided with a rearwardly ex-' tending arm 48 which is pivotally mounted on the shaft 31 journaled in the side extension 40, the gear.30 being mounted on the same shaft. The bearings 44 and 45 are connected by a circular member 49 adapted to form a cover for the roller 10, the cover being cut away at 50 to form the top'of an opening through which stock, indicated at 51, maybe. fed to the, rollers. The bearings 34 and 35 are likewise connected with a circular member 52 adaptedito form a cover for the lower roller 11-. a The cover 52 is also cut away, as indicated at '53 to form the bot tom of the opening through which the stock 51 is fed to the rollers. The cover 52 1s provided with a shelf'54 upon which the stock rests as it advances into contact with the knife 3, or when it is returned to the operavided with extensions 55' and 56 respectively,

adapted to cover the front faces of the gears 42 and, 32 respectively. The extensions 55 and 56 are provided with rearwardly ex- \tending ends 57 and 58' which extend adjacent to an end cover 59 mounted on a flange 6O projecting from the frame 1 as clearly A shown in Fig. 2. The top of the end cover flange 60 by means of a bolt 61 extending through the cover into threaded engagement with a boss 62 carried by the frame, the bottom of the cover being positioned upon an extension 63 carried by the shaft 27 upon which the arm 26 of the segment 25 is mounted. A nut 64 serves to hold the cover in position upon the extension 63. v

The cover 52 is provided with a downwardly extending member 65 bifurcated at its lower end to receive an adjusting screw 66 in threaded engagement with a portion 67 of the frame 1. The adjusting screw 66 is provided with a shoulder 68 against which 65 the front of the downwardly extending than the lower portion and in 59 is preferably held in: position upon the" member rests. The extension 65 is provided with a rearwardlypositioned stop 69 in engagement with a follower 70 mounted upon one end of a spring 71 and supported in a. housing 72 formed in the frame 1.

Upon the. end of the spring is positioned a follower 73 supported by the end of an adjusting screw 74 extending through a sleeve 75 in threaded engagement with a wall 76 at the rear of the frame 1. By means of the parts just described the roller 11 may be adjusted up and down, toward or away from the knife 3, by loosening or tightening the adjusting screws 66 and 74, the spring 71 yieldingly holding theroller and its supporting parts in whatever position said members are adjusted to.

The roller 10 is also yieldingly held in adjustable relationship to the knife 3 by means of a rod 77 pivotally connected with the cover 49 at 78 and extending through the center of the arch 41 to receive a spring 79, the lower end of which rests on the arch, while the upper end is engaged by a washer 80 held against outward mover i'. L, um nuts 81. By turning the nuts 81 the roller 10 and the parts supporting the same may be raised or lowered as desired upon the shafts 31 and 47 through the medium of the pivotally mounted arms 46 and 48. A set screw 82 is positioned through the arch 41 in threaded engagement therewith and rests upon a seat 83 on the cover 49. The set screw is provided for the purpose of preventing upward movement of the roller 10 and cover 49 after the roller has been adjusted in proper position with respect to the knife 3. By adjustably mounting the rollers, different thicknesses of stock may be fed therebetween and the relative thickness of the upper and lower split portions 84 and 85 of the stock may also be controlled thereby. In Fig. 6 the upper split portion of the stock is shown to be considerably thinner Fig. 7 the upper and lower portions are shown to be about equal at the end of the out. In order to produce this result while the stock is passing forwardly between the rollers to the point where the rollers are reversed to move in an opposite direction, it is necessary to provide a spiral surface or cam face 86 upon the roller 10 which will allow the space between the rollers to increase as the rollers rotate from their normal position to that shown in Fig. 7. By this means the distance from the operating face of the roller 10 to the blade of the knife 3 is constantly increasing as the stock is fed forwardly between the rollers thereby increasing the thickness of the upper portion of the stock. and at the same time decreasing the thick ness of the lower portion. The rollers therefore may be adjusted to varv the relative thicknesses of the upper and lower portions til lid

till

it ti of the. stock in either'direction, that is, to produce a thin upper and thick loweror thick upper and thin lower portion as desired.

ln Fig-81f have shown a modified form f upper roller one-half of which is provided with a cam face 87 and the other with a true cylindrical face 88. With a roller of this type stock may be split either in the manner just described or with both upper and lower portions thereof cut relatively the samethickness throughout. 1

As a means for reversing the rollers and 11 after they have rotated in one direction a redetermined amount, .1 provide the pivotally mounted segment which is "moved in opposite directions at every revolution of the gear 16 through the medium' if the connecting rod 23. By this means the gear 28 and the other gears operated thereby are reversed at every half revolution of the gear 16, thus causing the rollers 10 and 11 to return the stock'51 to the operator after it has been fed between the rollers a predetermined amount. The length if the split portions of the stock is regulated by lengthening or shortening the. dis

tance between the center of the crank in 21 and the center of the gear 16, which Isadjustably controlled in a manner previously described. While I have shown and described the preferred embodiment of my invention l do not wish to be limited to the exact construction set forth as it is obvious that certain variations may be made in the several parts of the structure without departing from the spirit of the invention.

ll claim as my invention:

1. A leather splittingmachine comprising aknife, a pair of rollers adapted when rotated to feed a piece ofstock into engagethereafter in an opposite direction.

2. A leather splitting machine comprising knife, a pair of rollers adapted when rotated' to feed a piece'of stock into engagement with the knife to cause the splitting of the stock into sections, one of saidrollers being provided with a camface for the purpose of increasing the thickness of one of the sections as the stock is advanced upon the knife, and means for causing therollers to revolve, first in the direction to feed the stock to the knife and-thereafter in an opposite direction for the purpose of withdrawing the stock from the knife.

3. A leather splitting machinecomprising a knife, a pair of rollers adapted when rofated to feed a piece of stock into engagement with the knife, a plurality of gears connecting rod having one end pivotally conating the rollers.

for operatin the rollers, a pivotally mounted segment foroperating the gears, a rotatable member spaced from the segment, a

nected to the segment and the other pivotally connected to the rotatable member and adjustable relatively to the center of saidrotatable member, and means for operating the rotatable member,

l. A leather splitting machine comprising a knife, a pair of rollers adapted when rotated in one direction 'to feed a piece of stock into engagement with the knife, and in an opposite direction to withdraw it therefrom, a gear operatively connected with the rollers, a pivotally mounted segment provided with teeth meshing with the gear and means frame, a roller journaled thereon, a supporting connection-between said last mentioned arms, a knife located between the rollers, means 'foradjusting one: ofthe connections relatively to the other,'and' means for actu- 6. A leather splitting machine comprising a frame, upper and lower'arms pivoted at each side of theframe, a roller journaled upon the upper arms, a second roller four naled upon the lowerarms, a knife between o the rollers, a connection for the upper arms forming a cover for the roller mounted thereon, means for yieldingly supporting said connection, a cover for the lower roller connecting said lower arms, means for adjustably supporting the last mentioned cover, and means for actuating said rollers.

'Z. In a leather splitting machine, the combination of a knife, and means extending forwardly of the cutting edge of the'knife for feeding and directing a piece of stock thereto, said means comprising a roller having a spiral surface. y

8. In a leather splitting machine, the combination of a knife, a pair of rollers for feeding a piece of work to the knife, one of said rollers having a spiral surface terminating in a shoulder, and means for reversing the 120 direction of feed before the shoulder comes in contact with the work.

9. In a leather splitting machine, the comlot bination of a knife, a pair of rollers forfeedmatically reversing the direction of rotation of said rollers, and adjustable means for determining the extent of rotation of the feed rollers in opposite directions.

' 11. In a leather splitting machine, the combination of a frame, a knife supported thereon, a roller having a spiral surface extending forwardly of the knife and adapted to direct a work piece to the cutting edge of the knife, and means also extending forwardly of the knife and cooperating with said roller for feeding the work piece against 15 the knife.

- 12. In a leather splitting machine, the

combination of a frame, a knife supported thereon, a roller having a cylindrical surface and a spiral surface adjacent thereto, and 20 means cooperating With said roller to feed a Work piece to the knife,

JACOB F. FUNCK.

Witnesses: p

FRANCIS JERDONE, Jr., RUSSELL B. GRIFFITH. 

